1959425680 has 80 divisors (see below), whose sum is σ = 4730840064. Its totient is φ = 753937920.

The previous prime is 1959425669. The next prime is 1959425681. The reversal of 1959425680 is 865249591.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1959425681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426757 + ... + 431323.

Almost surely, 2^1959425680 is an apocalyptic number.

1959425680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1959425680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2365420032).

1959425680 is an abundant number, since it is smaller than the sum of its proper divisors (2771414384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1959425680 is a wasteful number, since it uses less digits than its factorization.

1959425680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4784 (or 4778 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 49.

The square root of 1959425680 is about 44265.4004838994. The cubic root of 1959425680 is about 1251.3427022707.

The spelling of 1959425680 in words is "one billion, nine hundred fifty-nine million, four hundred twenty-five thousand, six hundred eighty".